在SpringBoot应用中配置AOP后，启动时遇到ApplicationContextException，原因是BeanPostProcessor在实例化bean时失败，特别是与transaction管理和类型匹配有关的错误。通过检查发现，切入点表达式缺少通配符'*'，导致映射错误。修复方法是在切入点注解中正确添加'*'，以匹配控制层下的所有方法。修正后，启动问题得到解决。
springboot 配置aop后，启动报错：
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘tomcatServletWebServerFactory’ defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfigurationEmbeddedTomcat.class]:BeanPostProcessorbeforeinstantiationofbeanfailed;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration′:Initializationofbeanfailed;nestedexceptionisjava.lang.IllegalArgumentException:warningnomatchforthistypename:com.example.demo.controller[Xlint:invalidAbsoluteTypeName]atorg.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:157)atorg.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540)atorg.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)atorg.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)atorg.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:316)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1260)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1248)atcom.example.demo.Springboot1Application.main(Springboot1Application.java:17)Causedby:org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′tomcatServletWebServerFactory′definedinclasspathresource[org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfigurationEmbeddedTomcat.class]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration': Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: com.example.demo.controller [Xlint:invalidAbsoluteTypeName]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:157)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.example.demo.Springboot1Application.main(Springboot1Application.java:17)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tomcatServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfigurationEmbeddedTomcat.class]:BeanPostProcessorbeforeinstantiationofbeanfailed;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration′:Initializationofbeanfailed;nestedexceptionisjava.lang.IllegalArgumentException:warningnomatchforthistypename:com.example.demo.controller[Xlint:invalidAbsoluteTypeName]atorg.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:157)atorg.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540)atorg.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)atorg.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)atorg.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:316)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1260)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1248)atcom.example.demo.Springboot1Application.main(Springboot1Application.java:17)Causedby:org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′tomcatServletWebServerFactory′definedinclasspathresource[org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfigurationEmbeddedTomcat.class]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration’: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: com.example.demo.controller [Xlint:invalidAbsoluteTypeName]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:493)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:216)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154)
… 8 more
并且跳入映射工具类出错reflectionUtil.java中，说明某个地方映射出现问题了，我的是写切入点时少写了一个*号，
错误事例：
这个代表控制层下的所有方法，漏了控制层下先有类再有方法。
正确事例：
这样就解决啦！！！！！
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